kernel/linux.git/net/wireless/sysfs.c, branch v7.1-rc5

Merge tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

2026-04-15T01:36:10+00:00

Pull networking updates from Jakub Kicinski: "Core & protocols: - Support HW queue leasing, allowing containers to be granted access to HW queues for zero-copy operations and AF_XDP - Number of code moves to help the compiler with inlining. Avoid output arguments for returning drop reason where possible - Rework drop handling within qdiscs to include more metadata about the reason and dropping qdisc in the tracepoints - Remove the rtnl_lock use from IP Multicast Routing - Pack size information into the Rx Flow Steering table pointer itself. This allows making the table itself a flat array of u32s, thus making the table allocation size a power of two - Report TCP delayed ack timer information via socket diag - Add ip_local_port_step_width sysctl to allow distributing the randomly selected ports more evenly throughout the allowed space - Add support for per-route tunsrc in IPv6 segment routing - Start work of switching sockopt handling to iov_iter - Improve dynamic recvbuf sizing in MPTCP, limit burstiness and avoid buffer size drifting up - Support MSG_EOR in MPTCP - Add stp_mode attribute to the bridge driver for STP mode selection. This addresses concerns about call_usermodehelper() usage - Remove UDP-Lite support (as announced in 2023) - Remove support for building IPv6 as a module. Remove the now unnecessary function calling indirection Cross-tree stuff: - Move Michael MIC code from generic crypto into wireless, it's considered insecure but some WiFi networks still need it Netfilter: - Switch nft_fib_ipv6 module to no longer need temporary dst_entry object allocations by using fib6_lookup() + RCU. Florian W reports this gets us ~13% higher packet rate - Convert IPVS's global __ip_vs_mutex to per-net service_mutex and switch the service tables to be per-net. Convert some code that walks the service lists to use RCU instead of the service_mutex - Add more opinionated input validation to lower security exposure - Make IPVS hash tables to be per-netns and resizable Wireless: - Finished assoc frame encryption/EPPKE/802.1X-over-auth - Radar detection improvements - Add 6 GHz incumbent signal detection APIs - Multi-link support for FILS, probe response templates and client probing - New APIs and mac80211 support for NAN (Neighbor Aware Networking, aka Wi-Fi Aware) so less work must be in firmware Driver API: - Add numerical ID for devlink instances (to avoid having to create fake bus/device pairs just to have an ID). Support shared devlink instances which span multiple PFs - Add standard counters for reporting pause storm events (implement in mlx5 and fbnic) - Add configuration API for completion writeback buffering (implement in mana) - Support driver-initiated change of RSS context sizes - Support DPLL monitoring input frequency (implement in zl3073x) - Support per-port resources in devlink (implement in mlx5) Misc: - Expand the YAML spec for Netfilter Drivers - Software: - macvlan: support multicast rx for bridge ports with shared source MAC address - team: decouple receive and transmit enablement for IEEE 802.3ad LACP "independent control" - Ethernet high-speed NICs: - nVidia/Mellanox: - support high order pages in zero-copy mode (for payload coalescing) - support multiple packets in a page (for systems with 64kB pages) - Broadcom 25-400GE (bnxt): - implement XDP RSS hash metadata extraction - add software fallback for UDP GSO, lowering the IOMMU cost - Broadcom 800GE (bnge): - add link status and configuration handling - add various HW and SW statistics - Marvell/Cavium: - NPC HW block support for cn20k - Huawei (hinic3): - add mailbox / control queue - add rx VLAN offload - add driver info and link management - Ethernet NICs: - Marvell/Aquantia: - support reading SFP module info on some AQC100 cards - Realtek PCI (r8169): - add support for RTL8125cp - Realtek USB (r8152): - support for the RTL8157 5Gbit chip - add 2500baseT EEE status/configuration support - Ethernet NICs embedded and off-the-shelf IP: - Synopsys (stmmac): - cleanup and reorganize SerDes handling and PCS support - cleanup descriptor handling and per-platform data - cleanup and consolidate MDIO defines and handling - shrink driver memory use for internal structures - improve Tx IRQ coalescing - improve TCP segmentation handling - add support for Spacemit K3 - Cadence (macb): - support PHYs that have inband autoneg disabled with GEM - support IEEE 802.3az EEE - rework usrio capabilities and handling - AMD (xgbe): - improve power management for S0i3 - improve TX resilience for link-down handling - Virtual: - Google cloud vNIC: - support larger ring sizes in DQO-QPL mode - improve HW-GRO handling - support UDP GSO for DQO format - PCIe NTB: - support queue count configuration - Ethernet PHYs: - automatically disable PHY autonomous EEE if MAC is in charge - Broadcom: - add BCM84891/BCM84892 support - Micrel: - support for LAN9645X internal PHY - Realtek: - add RTL8224 pair order support - support PHY LEDs on RTL8211F-VD - support spread spectrum clocking (SSC) - Maxlinear: - add PHY-level statistics via ethtool - Ethernet switches: - Maxlinear (mxl862xx): - support for bridge offloading - support for VLANs - support driver statistics - Bluetooth: - large number of fixes and new device IDs - Mediatek: - support MT6639 (MT7927) - support MT7902 SDIO - WiFi: - Intel (iwlwifi): - UNII-9 and continuing UHR work - MediaTek (mt76): - mt7996/mt7925 MLO fixes/improvements - mt7996 NPU support (HW eth/wifi traffic offload) - Qualcomm (ath12k): - monitor mode support on IPQ5332 - basic hwmon temperature reporting - support IPQ5424 - Realtek: - add USB RX aggregation to improve performance - add USB TX flow control by tracking in-flight URBs - Cellular: - IPA v5.2 support" * tag 'net-next-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1561 commits) net: pse-pd: fix kernel-doc function name for pse_control_find_by_id() wireguard: device: use exit_rtnl callback instead of manual rtnl_lock in pre_exit wireguard: allowedips: remove redundant space tools: ynl: add sample for wireguard wireguard: allowedips: Use kfree_rcu() instead of call_rcu() MAINTAINERS: Add netkit selftest files selftests/net: Add additional test coverage in nk_qlease selftests/net: Split netdevsim tests from HW tests in nk_qlease tools/ynl: Make YnlFamily closeable as a context manager net: airoha: Add missing PPE configurations in airoha_ppe_hw_init() net: airoha: Fix VIP configuration for AN7583 SoC net: caif: clear client service pointer on teardown net: strparser: fix skb_head leak in strp_abort_strp() net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete() selftests/bpf: add test for xdp_master_redirect with bond not up net, bpf: fix null-ptr-deref in xdp_master_redirect() for down master net: airoha: Remove PCE_MC_EN_MASK bit in REG_FE_PCE_CFG configuration sctp: disable BH before calling udp_tunnel_xmit_skb() sctp: fix missing encap_port propagation for GSO fragments net: airoha: Rely on net_device pointer in ETS callbacks ...

kernfs: pass struct ns_common instead of const void * for namespace tags

2026-04-09T12:36:52+00:00

kernfs has historically used const void * to pass around namespace tags used for directory-level namespace filtering. The only current user of this is sysfs network namespace tagging where struct net pointers are cast to void *. Replace all const void * namespace parameters with const struct ns_common * throughout the kernfs, sysfs, and kobject namespace layers. This includes the kobj_ns_type_operations callbacks, kobject_namespace(), and all sysfs/kernfs APIs that accept or return namespace tags. Passing struct ns_common is needed because various codepaths require access to the underlying namespace. A struct ns_common can always be converted back to the concrete namespace type (e.g., struct net) via container_of() or to_ns_common() in the reverse direction. This is a preparatory change for switching to ns_id-based directory iteration to prevent a KASLR pointer leak through the current use of raw namespace pointers as hash seeds and comparison keys. Signed-off-by: Christian Brauner

wifi: cfg80211: add support for NAN data interface

2026-03-25T19:56:53+00:00

This new interface type represents a NAN data interface (NDI). It is used for data communication with NAN peers. Note that the existing NL80211_IFTYPE_NAN interface, which is the NAN Management Interface (NMI), is used for management communication. An NDI interface is started when a new NAN data path is about to be established, and is stopped after the NAN data path is terminated. - An NDI interface can only be started if the NMI is running, and NAN is started. - Before the NMI is stopped, the NDI interfaces will be stopped. Add the new interface type, handle add/remove operations for it, and makes sure of the conditions above. Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20260219114327.0d681335c2e2.I92973483e927820ae2297853c141842fdb262747@changeid Link: https://patch.msgid.link/20260318123926.206536-4-miriam.rachel.korenblit@intel.com Signed-off-by: Johannes Berg

wifi: cfg80211: refactor wiphy_suspend

2026-03-02T08:23:07+00:00

The sequence of operations that needs to be done in wiphy_suspend is identical for the case where there is no wowlan configured, and for the case that it is but the driver refused to do wowlan (by returning 1 from rdev_suspend). The current code duplicates this set of operations for each one of the cases. In particular, next patch will change the locking of cfg80211_leave_all to not hold the wiphy lock, which will be easier to do if it is not called twice. Change the code to handle first the case that wowlan is configured, and then handle both cases (driver refused to do wowlan and no wowlan configured) in one place. Note that this changes the behaviour to set suspended=true also when we were not registered yet, but that makes sense anyway, as wiphy works can be queued also before registration. Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20260108102921.00336669ac32.Id76f272662e1315cd93a628808cc2d1625036b00@changeid Signed-off-by: Miri Korenblit Link: https://patch.msgid.link/20260219094725.3846371-2-miriam.rachel.korenblit@intel.com Signed-off-by: Johannes Berg

wifi: cfg80211: add cfg80211_stop_link() for per-link teardown

2026-01-08T12:11:01+00:00

Currently, whenever cfg80211_stop_iface() is called, the entire iface is stopped. However, there could be a need in AP/P2P_GO mode, where one would like to stop a single link in MLO operation instead of the whole MLD interface. Hence, introduce cfg80211_stop_link() to allow drivers to tear down only a specified AP/P2P_GO link during MLO operation. Passing -1 preserves the existing behavior of stopping the whole interface. Make cfg80211_stop_iface() call this function by passing -1 to keep the default behavior the same, that is, to stop all links and use cfg80211_stop_link() with the desired link_id for AP/P2P_GO mode, to stop only that link. This brings no behavioral change for single-link/non-MLO interfaces, and enables drivers to stop an AP/P2P_GO link without disrupting other links on the same interface. Signed-off-by: Manish Dharanenthiran Link: https://patch.msgid.link/20251127-stop_link-v2-1-43745846c5fd@qti.qualcomm.com [make cfg80211_stop_iface() inline] Signed-off-by: Johannes Berg

wifi: cfg80211: replace use of system_unbound_wq with system_dfl_wq

2025-11-20T09:26:17+00:00

Currently if a user enqueues a work item using schedule_delayed_work() the used wq is "system_wq" (per-cpu wq) while queue_delayed_work() use WORK_CPU_UNBOUND (used when a cpu is not specified). The same applies to schedule_work() that is using system_wq and queue_work(), that makes use again of WORK_CPU_UNBOUND. This lack of consistency cannot be addressed without refactoring the API. For more details see the Link tag below. This continues the effort to refactor workqueue APIs, which began with the introduction of new workqueues and a new alloc_workqueue flag in: commit 128ea9f6ccfb ("workqueue: Add system_percpu_wq and system_dfl_wq") commit 930c2ea566af ("workqueue: Add new WQ_PERCPU flag") Switch to using system_dfl_wq because system_unbound_wq is going away as part of a workqueue restructuring. Suggested-by: Tejun Heo Signed-off-by: Marco Crivellari Link: https://lore.kernel.org/all/20250221112003.1dSuoGyc@linutronix.de/ Link: https://patch.msgid.link/20251113162032.394804-4-marco.crivellari@suse.com Signed-off-by: Johannes Berg

wifi: cfg80211: fully move wiphy work to unbound workqueue

2024-05-29T13:23:33+00:00

Previously I had moved the wiphy work to the unbound system workqueue, but missed that when it restarts and during resume it was still using the normal system workqueue. Fix that. Fixes: 91d20ab9d9ca ("wifi: cfg80211: use system_unbound_wq for wiphy work") Reviewed-by: Miriam Rachel Korenblit Link: https://msgid.link/20240522124126.7ca959f2cbd3.I3e2a71ef445d167b84000ccf934ea245aef8d395@changeid Signed-off-by: Johannes Berg

wifi: cfg80211: add flush functions for wiphy work

2023-09-11T09:27:19+00:00

There may be sometimes reasons to actually run the work if it's pending, add flush functions for both regular and delayed wiphy work that will do this. Signed-off-by: Johannes Berg

wifi: cfg80211: add a work abstraction with special semantics

2023-06-07T17:53:15+00:00

Add a work abstraction at the cfg80211 level that will always hold the wiphy_lock() for any work executed and therefore also can be canceled safely (without waiting) while holding that. This improves on what we do now as with the new wiphy works we don't have to worry about locking while cancelling them safely. Also, don't let such works run while the device is suspended, since they'll likely need to interact with the device. Flush them before suspend though. Signed-off-by: Johannes Berg

drivers: remove struct module * setting from struct class

2023-03-17T14:16:27+00:00

There is no need to manually set the owner of a struct class, as the registering function does it automatically, so remove all of the explicit settings from various drivers that did so as it is unneeded. This allows us to remove this pointer entirely from this structure going forward. Cc: "Rafael J. Wysocki" Link: https://lore.kernel.org/r/20230313181843.1207845-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman